My wife and I stayed at Peter's Sukhumvit apartment for 14 nights in June 2012.
The entire experience was first class, a delightful apartment, we found it to be spotlessly clean, access to a terrific pool and in a great location, just a short walk to the MRT/BTS station and shopping precinct.
Peter is a great host, leaving us with maps, restaurant suggestions and a full explanation of the workings of the apartment complex.
My wife and I would recommend the Sukhumvit apartment highly and would have no hesitation in staying at Peter's place again in we were ever in Bangkok.